Every child should read poetry and this is the perfect book to find the best children's poetry out there! When I was in 4th grade my teacher actually went to the library and hand picked this book just for e because she thought I would enjoy it. She was right! I went home and read the poems to my grandparents all afternoon. The poems in this book often have meanings that may confuse younger readers so I suggest not using it until at least 4th grade and even then, for the advanced students.
Scholastic classifies the DRA level as 40 which means 4th or 5th grade.
An activity I would assign for my students would be to pick their favorite poem from the book and dissect it. Find any figurative language within the poem and determine its literal meaning.